I detach it and put it in the inside pocket. That way it is out of the way, but I have a mirror if I need one.
Thats what I do too. I love the mirror, it is very handy and a good size for me. I am surprised that a lot of you guys dont use the mirror. I am wondering if Bal knows that about the customers and will sell the bags without a mirror in the future... given all the cost cutting that is already happening it wouldnt surprise me.